Bump Microsoft.CodeAnalysis.CSharp from 4.6.0 to 4.7.0

Bumps [Microsoft.CodeAnalysis.CSharp](https://github.com/dotnet/roslyn) from 4.6.0 to 4.7.0.
- [Release notes](https://github.com/dotnet/roslyn/releases)
- [Changelog](https://github.com/dotnet/roslyn/blob/main/docs/Breaking%20API%20Changes.md)
- [Commits](https://github.com/dotnet/roslyn/commits)

---
updated-dependencies:
- dependency-name: Microsoft.CodeAnalysis.CSharp
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

DNN Platform/Tests/DotNetNuke.Tests.SourceGenerators/DotNetNuke.Tests.SourceGenerators.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
         <TargetFramework>net6.0</TargetFramework>
@@ -20,7 +20,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.6.0" />
+        <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.7.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
         <PackageReference Include="NUnit" Version="3.13.3" />
         <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />